gatekeeper-library
client_golang
Our great sponsors
gatekeeper-library | client_golang | |
---|---|---|
8 | 19 | |
603 | 5,117 | |
1.3% | 1.7% | |
8.8 | 8.6 | |
10 days ago | 6 days ago | |
Open Policy Agent | Go | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
gatekeeper-library
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Multi-tenancy in Kubernetes
Here is a library or rules for the Open Policy Agent.
- open-policy-agent/gatekeeper-library: The OPA Gatekeeper policy library.
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Security scanning of k8s manifest files vs running cluster
https://github.com/open-policy-agent/gatekeeper-library is the library of OPA Gatekeeper policies.
- OPA Rego is ridiculously confusing - best way to learn it?
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Container security best practices: Comprehensive guide
Many more examples are available in the OPA Gatekeeper library project!
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Expose Open Policy Agent/Gatekeeper Constraint Violations for Kubernetes Applications with Prometheus and Grafana
by default and exposes metrics on path ```/metrics``` . It can run locally on your development box as long as you have a valid Kubernetes configuration in your home folder (i.e. if you can run kubectl and have the right permissions). When running on the cluster a ```incluster``` parameter is passed in so that it knows where to look up for the cluster credentials. Exporter program connects to Kubernetes API every 10 seconds to scrape data from Kubernetes API. We've used [this](https://medium.com/teamzerolabs/15-steps-to-write-an-application-prometheus-exporter-in-go-9746b4520e26) blog post as the base for the code. ## Demo Let's go ahead and prepare our components so that we have a Grafana dashboard to show us which constraints have been violated and how the number of violations evolve over time. ### 0) Required tools - [Git](https://git-scm.com/downloads): A git cli is required to checkout the repo and - [Kubectl](https://kubernetes.io/docs/tasks/tools/) and a working K8S cluster - [Ytt](https://carvel.dev/ytt/): This is a very powerful yaml templating tool, in our setup it's used for dynamically overlaying a key/value pair in all constraints. It's similar to Kustomize, it's more flexibel than Kustomize and heavily used in some [Tanzu](https://tanzu.vmware.com/tanzu) products. - [Kustomize](https://kustomize.io/): Gatekeeper-library relies on Kustomize, so we need it too. - [Helm](https://helm.sh/): We will install Prometheus and Grafana using helm - Optional: [Docker](https://www.docker.com/products/docker-desktop): Docker is only optional as we already publish the required image on dockerhub. ### 1) Git submodule update Run ```git submodule update --init``` to download gatekeeper-library dependency. This command will download the [gatekeeper-library](https://github.com/open-policy-agent/gatekeeper-library) dependency into folder ```gatekeeper-library/library``` . ### 2) Install OPA/Gatekeeper If your K8S cluster does not come with Gatekeeper preinstalled, you can use install it as explained [here](https://open-policy-agent.github.io/gatekeeper/website/docs/install/). If you are familiar with helm, the easiest way to install is as follows: ```bash helm repo add gatekeeper https://open-policy-agent.github.io/gatekeeper/charts helm install gatekeeper/gatekeeper --generate-name
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Who is doing image scanning on an admission controller? (Open source)
Gatekeeper library has example policies for restricting image repositories: https://github.com/open-policy-agent/gatekeeper-library/tree/master/library/general
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Mental models for understanding Kubernetes Pod Security Policy PSP
You should check out the Gatekeeper project. There's plenty of templates available for use without having to write a single line of rego for most use cases (e.g https://github.com/open-policy-agent/gatekeeper-library)
client_golang
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5 Ways to Improve Your API Reliability
Prometheus, an open-source systems monitoring and alerting toolkit, has client libraries that allow you to instrument your services in a variety of languages. Here's an example of how you might use the Go client library to expose metrics on an HTTP endpoint. We will leverage the prometheus go client to expose metrics and create them.
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a tool for quickly creating web and microservice code
Monitoring prometheus, grafana
- The most helpful Go Packages
- Observabilidade com Prometheus
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How do you monitor your Go apps?
I'd recommend github.com/victoriametrics/metrics for exporting custom metrics in Prometheus format. It is easier to use than the github.com/prometheus/client_golang.
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prometheus exporter using Go
Start at the official documentation and the Go client library .
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Any recommendation on Go Metrics libraries to report metrics to DataDog.
DataDog can read Prometheus metrics. Note that this approach works for metrics but not for traces although you can configure DataDog to receive OpenTelemetry traces as well https://github.com/prometheus/client_golang
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How to observe an http web application in real time with pprof?
For Go, the standard is to use Prometheus and the Prometheus Go client library.
- High performance / low overhead metrics/instrumentation library?
- Collecting Go Runtime Metrics With OpenCensus
What are some alternatives?
OPA (Open Policy Agent) - Open Policy Agent (OPA) is an open source, general-purpose policy engine.
twirp - A simple RPC framework with protobuf service definitions
helm-charts - Prometheus community Helm charts
opa-scorecard
conftest - Write tests against structured configuration data using the Open Policy Agent Rego query language
Gin - Gin is a HTTP web framework written in Go (Golang). It features a Martini-like API with much better performance -- up to 40 times faster. If you need smashing performance, get yourself some Gin.
tfsec - Security scanner for your Terraform code
chi - lightweight, idiomatic and composable router for building Go HTTP services
opa-image-scanner - Kubernetes Admission Controller for Image Scanning using OPA
jaeger-client-go - 🛑 This library is DEPRECATED!